package thread.test10ConcurrentHashMap;

import java.util.concurrent.ConcurrentHashMap;

public class TestClient {
    public static void main(String[] args) {
        ConcurrentHashMap<String,String> map=new ConcurrentHashMap<>();
        map.put("a","1");
        map.put("b","1");
        map.size();
        System.out.println(Integer.numberOfLeadingZeros(16) | (1 << (16 - 1)));
        Integer a=new Integer(5);
        Integer b=new Integer(5);
        System.out.println("###############");
        System.out.println(a==b);
    }
}
